System of kilns



May 8, 1923. 1,454,358

" 1 WEEKS SYSTEM OF KILNS Filed June; 12, 1922 A 'MEW/mm nel PatentedMay 8, 1923.

LEROY WEEKS, OF NEVADl-LVIOWA.

SYSTEM or KILNS.

Application filed .Tune 12, 1922.

To Aall 'wi/0m it 'may concern.' t Be it known' that I, LERoY WEEKS, aciti- -zen ofthe United States, anda resident of Nevada, in the countyofbtory andState of Iowa, have invented arcertain new and useful Systemof Kilns, of,y which the fol-y lowing is a speciiication. i, U

The object of my invention is to` provide ja system of kilns for dryingand .burning ,l

ware, which is simple, durable,v inexpensive, and comparatively simplevin operation.

More particularly, my invention relates to I a battery of kilns arrangedso that the heat from one of the kilns may be discharged into the nextadjacent kiln and so on, whereby a great eiiiciency in the use of fuelmay be Y obtained.

i provided for Still another object is toarrange a subterranean conduitfor connecting each pair of the adjacent kilns so that afan member maybe' selectively and removably mountedl in any one of the conduits sothat the heated air from one kiln may .be drawn into the` neXt adjacentkiln, and after v ture of the latter kiln reaches a predetermineddegree, the fanhelement may be removed for preventing it from meltingdown, and for using it one of the other conduits.

In this connection it may be mentioned that were the fan elementpermitedto remain in the conduit and a fanelement were eachconduit, thenafter the heat passing the proper degree for burning the ware in lthekiln it would be so hot'that the fan `would be worthless. The revolvingfan would commence to weaken at approximately six or seven hundred-degrees,- while the heat passing froin one kiln to the other mightreach twenty-,two or twenty-three'hundred degrees, and it can,therefore, be seen why itis necessary to remove thefan element byarrangingl the y fanelement so "that it will be selectively or removablymounted in any one of the to use 911e.- fan, s.

conduits makes it possible element' for a batter-y ofv the temperai yofthem.

commonly,

from one kiln to the other reached a certain degree,`the fan element`would melt down' and when the heat' reached passage' Way and flues,

Serial` No, 567,608. i

Withthese and other objects inview, my system of kilns consists in' theconstruc- .4 tion, arrangement andcombination of the various parts ofvmydevice., jects contemplated are attained, as 'hereinafter more fully setforth, pointed out in my claim and illustrated in the accompanyinfrdrawings, in.which: i j i Figure l is a battery of kilns, yone ofthekilns beingshown in construction thereo-f.

section to illustrate the Figure 2 is a vertical, central sectional4view taken on line 2`2' of Figure l. i ,i

cfa portion of Figure 3 is a plan view the conduit passing from Aonekilntoithe nextadjacent kiln; and i Figure l is a detailed, sectionalview taken on line 4- of Figure showing the mount` ing of the fanelement. i i

In the accompanying drawings, I have used the reference numeral l0 toindica-te a lkiln of the ordinary construction. yIn order to clearlyiunderstand the construct-ion of thekilns, I will now describe indetailone The kiln l0 is providedwith walls which project down into the groundsome distance, as lClearly shown in Figure'Q ofthe drawings. The kiln l0is provided with what is 80` known as a flash, wall l1. d between theflash more fully be explained. A i l f The kiln4 l0 is provided .withgafloor structure 13 which is ofthe grate typeso that air may pass-in'belowthe floor 13. A 90 passageway 14 is arranged. below the -vfloor i3which is in communication withthe sub1L terranean conduits 15.

Below the partitionv 4members y is` the annular heating'chainber 16. Inorder to 95 i i properly iire the kilns, it is necessarygthatA grates 17be provided, which niayybenhori.-` f zontal or inclined asl desired. Thegrates are so arrangedtliat they are' mounted in the y flash wall ll andthe outer` wallfofv the kiln l0, betweenapair of the partitioninemberswhereby theob- 55 j ein 1,454,355

rlhe portion between the partition members 12 and above the grates 17may be properly termed the flues 18. The tiues 18 are alternatelyarranged with passage ways 19. The passage ways 19 are in communicationwith the annular` heat chambers 16, while the iiues 18 are sepa *atedfrom the heat chambers 16 by means of the partition 20.

The conduit 15 is in communication with the smoke stack 21, having adamper 22 arranged therein. The conduit 15 is also provided with adamper structure 23.

I will now describe the ordinary tiring operation of the ordinary kiln.Each of the grates 17 are stacked with burning coals and the heat ispermitted to pass up through the fines 18, as indicated by the arrow 24.Theproducts of combustion then pass in` through the ware located withinthe kiln and through the openings' Vin Ithel floor 13, and through thepassage ways extending on each side of the passage way 14, as indicatedby the arrows 25. The products of combustion then pass through theconduit 15 and out through the stack 21. y

ln this connection it may be mentionedy that a great deal of heat islost by this method and in order to use the products of combustion,which ordinarily pass up through the stack 21, l arrange the conduits 15so that they are in communication with the next adjacent kiln 10. lnorder to draw the heat into the next adjacent kiln, 1 provide a fanelement 26.

The conduit 15 is inY communication at one end with thek passage way 14,and at its other endwith the annular heat chamber 16 of the nextadjacent kiln. The conduit 15 is provided with an opening 2T in itswall, which has its side edges bevelled. A. plate 28 havingcorresponding bevelled edges is received within the opening 27.

Extending through the plate 28 is the shaft 29 upon which the fanelement is mounted. The shaft 29 may be operatively j connected to amotor in any suitable manner. A collar is on the shaft 29, which 'restsupon the ball bearing 31.

' lt will be seen that when the damper 22 is closed and the damper 23 isopen, then the operation of the afn element 26 will cause the heat 'orproducts of combustion, which are in the conduit 15, to pass' into theannular heat chamber 16. The heat will then pass up through 'the passageway 19 between the liash wall 11 and the'outer wall of the kiln 10y andinto the kiln proper.

The arranging o'tthe fire pockets'or grate structurel' so tl'iat theyalternate with the assage'ways 19 is ver-y 'desirable and causes theheat `to be" equally distributed in the kiln. When the fan element v26is in operation, the products of combustion or hea-t pass through onekilnin thedirection indicated by the arrows 24 and 25, into the conduit15 and in the direction indicated by the arrows 32, and into the nextadjacent kiln.

In order to permit cool air to pass in around the Jian element 26 so asto prevent it from melting down, 1' provide openings 33 in the plate28.- A cover member 34 having an opening therein is rotatably mounted onthe plate 28. When it is desired to permit cold air to pass in aroundthe fan element 26, l rotate the cover member 34 so that the opening 35registers with the opening 33.

After the temperature in the conduit 15 reaches such a degree thatvthefan element will no longer stand up, l then'v move the entire Jianelement and plate 28. The opening 27 is then sealed withany suitableplate. T he complete fan element unit lmay then be moved over to thenext'adjacent kiln and so on.

It is extremely necessary that the an element unit be capable of removalfrom the conduit 15, in view of the fact that intense heat passes'therethrough.

1t will be seen that the tan may be so positioned, and the dampe'rs 2 3so regulated that heat will be drawn through several o the kilns 10 intothe kiln adjacent to the Jran element.

The plate 28 serves as a sealing member for the opening 27 and at thesame time as a supportingL member for the fan element 26, and also-asupport for avmotor as it is desirable to connect the shaft 29 directwith a. motor.

By my' arrangement it is possible to conduct heat from the kilnsvthroughthe entire battery of kilns. 1 can hardly over-em phasize thenecessity of making. the tan element removable, in viewl ofthe tact,lthat the heat which would passthrough the conduits 15 would be so greatthat the fan element would melt down.

It will be understood that each of the kilns is ired in the ordinarymanner and it may be said that it is superheated by the arrangement ofdrawing heat from one kiln into the'neXt adjacent kiln.

My present invention is an improvement ot my Patent Number 1,404,412,issue'dto me January 24, 1922.

Some changes may bey made in the construction and arrangement of thevarious parts of my invention, without departing from the real spiritand purpose ot my system of kilns, and it is my intention to cover by myclaim, any modiiiedformsot struc ture or use of mechanicalequivalents,vwhich may be reasonably included lwithin its scope.

` 1 claim as my inventionz` A batter-yorl 'kilns each provided withheating chambers and' passageways arranged 4between theheatiii'g'chambers andy connected together by a subterranean saidconduits having an opening in the topv ement arranged to be Wallthereof, a fan e1 conduit, each of vselectively and removably receivedin any between any pair of 5 one of the conduits kilns, so that heated abe drawn into' the next ir from one ki adj acent kiln,

1n may a bear- LERY WEEKS.`

